CN202208277U

CN202208277U - Burglar alarm device for license plate

Info

Publication number: CN202208277U
Application number: CN201120289480XU
Authority: CN
Inventors: 李静; 韩俊淑
Original assignee: BEIJING JUNRUI XINGKE INFORMATION TECHNOLOGY CO LTD
Current assignee: BEIJING JUNRUI XINGKE INFORMATION TECHNOLOGY CO LTD
Priority date: 2011-08-11
Filing date: 2011-08-11
Publication date: 2012-05-02
Anticipated expiration: 2021-08-11

Abstract

The utility model discloses a burglar alarm device for a license plate, and relates to the field of automobiles. The burglar alarm device for the license plates comprises sensors and a vehicle-mounted alarm device, wherein the sensor is connected with a control circuit, the sensors are respectively arranged at the front and the rear parts of the license plate, and the control circuit is respectively connected with a vehicle-mounted power supply and the vehicle-mounted alarm device. In the scheme, corresponding alarming can be sent out according to the moving of the license plate, the sensors output corresponding an electric signal after the license plate is moved; the control circuit sends out a warning signal by means of the vehicle-mounted alarm device of the automobile according to the received electric signal and uses a wireless module to send prompting messages to a user so as to enable the user near the site or far away from the site to obtain reminding to take corresponding measures, the control circuit adopts a vehicle-mounted power supply and a stand-by power supply, and the work efficiency of the alarm device is improved. The scheme is suitable for sensors with different types, the alarming modes are various, existing resources are fully used, the structure is simple, and the performance is reliable.

Description

A kind of license-plate anti-theft warning device

Technical field

The utility model relates to automotive field, thereby is specifically related to a kind of device that utilizes induction installation detecting car plate whether to be shifted and to report to the police.

Background technology

Along with the development of society, automobile is more and more universal, and the individual or the family that have automobile are also more and more; Identify label as automobile---car plate is that each car all must have, and from car plate, can also distinguish different departments, different regions; Like police car, military vehicle, local car, nonlocal car etc., the number of other car plate also has the special meaning, and is clocklike digital like some; Or the party concerned commemorated the array of meaning, car plate has become the mode that the car owner expresses individual character, just because of car plate has above-mentioned various use; Car plate also becomes the target of pilferage, and the car plate on car generally has two, is installed in the front-back of vehicle respectively; Conventional installation method is to adopt screw that car plate is fixed on the ad-hoc location, so the dismounting of car plate is very convenient, and this also is the major cause that car plate is lost.

On present most car antitheft alarm system is installed all, the purpose of warning is to prevent that vehicle is stolen, and mostly the object of therefore taking precautions against is to have ignored the protection of car plate to places such as vehicle window, car door, boots, has reduced the range of use of warning device.

The utility model content

For solving the problem that vehicle license plate is prone to lose in the prior art,, the utility model can detect fixedly whether car plate moves the technical scheme of warning thereby providing a kind of.Concrete scheme is following: a kind of license-plate anti-theft warning device; Comprise sensor, vehicle carried device, it is characterized in that said sensor is connected with control circuit; Car plate place before and after sensor is installed in respectively, control circuit connects vehicle power and vehicle carried device respectively.

Another preferred version of the utility model: said sensor is Hall element, opto-electronic pickup, metal detection sensor, vibration sensor or touch-type switch sensor.

Another preferred version of the utility model: said control circuit is connected with backup power.

Another preferred version of the utility model: said backup power is the 12V storage battery.

Another preferred version of the utility model: said vehicle carried device comprises vehicle carried device, wireless transport module.

Another preferred version of the utility model: said control circuit is connected with alarming horn, and the decibel value of said alarming horn is greater than 120dB.

Another preferred version of the utility model: when said sensor was Hall element, mounting structure was following: miniature magnet is installed in the back side of car plate, Hall element be installed on the vehicle and the installation site corresponding with miniature magnet.

Another preferred version of the utility model: when said sensor is opto-electronic pickup; Mounting structure is following: the transmitting terminal and the receiving end of opto-electronic pickup are installed in the fixedly bolt both sides of car plate respectively; Wherein transmitting terminal adopts diode as light source, and receiving end is a photo-transistor.

Whether this programme is moved according to car plate is reported to the police accordingly; Sensor moves the corresponding electric signal of back output at car plate, and control circuit utilizes the vehicle carried device of vehicle itself to send alerting signal according to the electric signal that receives; Utilize wireless module to send fixing caution note simultaneously to the user; Make near the scene or also can in time obtain reminding away from the car owner at scene, thereby take corresponding measure, control circuit adopts vehicle power as main power supply; For preventing that accident is connected with backup power, improved the work efficiency of warning device simultaneously.This programme adapts to various sensors of various types, and multiple type of alarm has made full use of existing resource, simple in structure, dependable performance.

Description of drawings

The connection scheme drawing of Fig. 1 the utility model.

Connection scheme drawing when Fig. 2 the utility model adopts Hall element.

Connection scheme drawing when Fig. 3 the utility model adopts opto-electronic pickup.

Fig. 4 the utility model has the structural representation of backup power.

Label declaration in the accompanying drawing: 1-car plate, 2-sensor, 21-Hall element, the miniature magnet of 22-, 23-opto-electronic pickup, 24-transmitting terminal, 25-receiving end, 3-control circuit, the vehicle carried device of 4-, 5-vehicle power, 6-backup power, 7-alarming horn, 8-wireless communication module, 9-bolt of rear end plate.

The specific embodiment

Whether this programme utilizes the sensor sensing car plate to move; Information according to sensor; Control circuit control warning device carries out corresponding warning; Realize the anti-theft alarm of car plate, wherein sensor can adopt various existing sensor of the prior art, as: Hall element, opto-electronic pickup, metal detection sensor, vibration sensor or touch-type switch sensor.

Embodiment one:

As shown in Figure 1, this programme comprises control circuit 3, and wherein sensor 2, vehicle carried device 4, vehicle power 5, wireless communication module 8 are connected with control circuit 3 respectively.The control circuit integrated microprocessor; Can read and process sensor data; And control vehicle carried device and wireless communication module according to result, and wherein wireless communication module can adopt short range remote controller or gsm module, and whole warning device is supplied power by vehicle power.

This programme is when work; Front and back car plate 1 that fixes and the correlation parameter between the sensor are set, and be safe condition this moment, when the dismounting situation appears in car plate; Variation has just taken place in the relevant parameter of the induction of sensor; Control circuit removes to trigger vehicle carried device according to the program of prior setting when receiving the signal of parameter change, send various sound and also remind the car owner simultaneously with the scaring thief; For making not car owner near the scene also can in time obtain relevant information, control circuit utilizes wireless communication module to send fixing caution note to the car owner simultaneously.

This programme is simple in structure, and reliable being prone to goes, and existing vehicle carried device is made full use of.

Embodiment two:

As shown in Figure 2, on the basis of the foregoing description, this programme is defined as Hall element 21 with sensor 2; Wherein according to the principle of work of Hall element; Miniature magnet 22 is installed in the back side of car plate 1, and Hall element 21 is installed on the vehicle, and corresponding with the position of miniature magnet 22; Like this when car plate is moved; Miniature magnet is occurrence positions change accordingly also, thereby the electric signal of Hall element output will change, and control circuit sends corresponding alerting signal according to vehicle carried device of this signal control and wireless communication module.The mounting means of miniature magnet can be directly to utilize magnetic force to be adsorbed on the car plate, also can utilize mode such as bonding to be fixed on the car plate.

This programme utilizes the change in location of miniature magnet to confirm whether car plate moves, and is simple in structure, reports to the police accurately.

Embodiment three:

As shown in Figure 3, on the basis of the foregoing description, this programme is defined as opto-electronic pickup 23 with sensor 2; The transmitting terminal 24 of opto-electronic pickup adopts diode as light source, and receiving end 25 adopts photo-transistor, and this programme utilizes the bolt of rear end plate of car plate as shelter; Transmitting terminal and receiving end are installed in the both sides of bolt of rear end plate respectively; The signal that setting is received transmitting terminal with receiving end is an alerting signal, and when bolt of rear end plate was twisted, the signal of transmitting terminal was received and terminates to; After control circuit was received the signal of opto-electronic pickup conducting, vehicle carried device controlled by control circuit and wireless communication module sends corresponding alerting signal.This programme also can replace bolt of rear end plate by bonding on the car plate position between transmitting terminal and the receiving end, fixing various shelters.

This programme Use Limitation is long, and signal receives accurately.

Embodiment four:

As shown in Figure 4; On the basis of the foregoing description,, on control circuit, connect a backup power 6 for the stability of warning device is provided; Backup power adopts the storage battery of 12V; On the basis of vehicle carried device, on control circuit, connect an alarming horn 7 simultaneously, wherein the decibel of alarming horn is realized scaring thief's purpose suddenly more than 120dB.

Claims

1. a license-plate anti-theft warning device comprises sensor, vehicle carried device, it is characterized in that said sensor is connected with control circuit, car plate place before and after sensor is installed in respectively, and control circuit connects vehicle power and vehicle carried device respectively.

2. a kind of license-plate anti-theft warning device as claimed in claim 1 is characterized in that, said sensor is Hall element, opto-electronic pickup, metal detection sensor, vibration sensor or touch-type switch sensor.

3. a kind of license-plate anti-theft warning device as claimed in claim 2 is characterized in that said control circuit is connected with backup power.

4. a kind of license-plate anti-theft warning device as claimed in claim 3 is characterized in that said backup power is the 12V storage battery.

5. a kind of license-plate anti-theft warning device as claimed in claim 4 is characterized in that said vehicle carried device comprises vehicle carried device, wireless transport module.

6. a kind of license-plate anti-theft warning device as claimed in claim 5 is characterized in that said control circuit is connected with alarming horn, and the decibel value of said alarming horn is greater than 120dB.

7. like described any license-plate anti-theft warning device of claim 3-6; It is characterized in that; When said sensor was Hall element, mounting structure was following: miniature magnet is installed in the back side of car plate, Hall element be installed on the vehicle and the installation site corresponding with miniature magnet.

8. like described any license-plate anti-theft warning device of claim 3-6; It is characterized in that; When said sensor is opto-electronic pickup; Mounting structure is following: the transmitting terminal and the receiving end of opto-electronic pickup are installed in the fixedly bolt both sides of car plate respectively, and wherein transmitting terminal adopts diode as light source, and receiving end is a photo-transistor.